import java.util.Arrays;

public class Main {
    public static void main(String[] args) {
//        System.exit(0);
        long time = System.currentTimeMillis();
        System.out.println(time);
        long starttime = System.currentTimeMillis();
        for (int i = 0; i < 100000; i++) {
            System.out.println("输出:"+i);
        }
        long endtime = System.currentTimeMillis();
        System.out.println((endtime-starttime)/1000.0+"s");

        int[] arr1 = {11,22,33,44,55,77,88,99};
        int[] arr2 = new int[20];

        System.arraycopy(arr1,2,arr2,2,arr1.length-2);
        System.out.println(Arrays.toString(arr1));
        System.out.println(Arrays.toString(arr2));
    }
}
